Add functions to Fortran API

[jcschulz]

See Issue #130

[codecov[bot]]

Codecov Report

Merging #131 into master will decrease coverage by 3.12%. The diff coverage is 75.00%.

@@            Coverage Diff             @@
##           master     #131      +/-   ##
==========================================
- Coverage   73.20%   70.07%   -3.13%     
==========================================
  Files         133      134       +1     
  Lines        7863     8451     +588     
==========================================
+ Hits         5756     5922     +166     
- Misses       2107     2529     +422     

Impacted Files	Coverage Δ
src/general/mppequil.cpp	27.79% <75.00%> (ø)
src/transport/Transport.h	70.00% <0.00%> (-30.00%)	:arrow_down:
src/thermo/Thermodynamics.h	75.00% <0.00%> (-6.82%)	:arrow_down:
src/transport/CollisionDB.h	97.61% <0.00%> (+0.05%)	:arrow_up:
src/thermo/Thermodynamics.cpp	37.26% <0.00%> (+0.42%)	:arrow_up:
src/thermo/StateModel.h	71.83% <0.00%> (+1.40%)	:arrow_up:
src/utilities/StringUtils.cpp	78.84% <0.00%> (+5.76%)	:arrow_up:

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[jbscoggi]

@grgbellasvki can you have a look at what the conflicts are?

[mgoodson-cvd]

@jcschulz I rebased your branch on latest master. There were no conflicts, but you may want to double check that it still behaves as you expect.

I was not able to update this pull request so I have opened #249. When that is merged I will close this PR.